Facultative Apospory in Tetraploid Paspalum distichum L.;
四倍体双穗雀稗兼性无孢子生殖的研究
The results firstly show that the mode of reproduction conforms to apospory.
研究绵刺 (Potaniniamongolica)的胚胎发育过程 ,首次报道其有性生殖模式为无融合生殖的体细胞无孢子生殖 (Apospory) ,由合点端珠心细胞形成 3～ 7个无孢子孢原 ,孢原细胞体积增大 ,形成单核胚囊 ,后经 3次有丝分裂形成多个八核七细胞的成熟胚囊 ,胚囊发育属山柳菊型。
To determine the ultrastructural features of synergid in aposporous embryo sac,we characterize the synergid in the apomictic embryo sac in the aposporous species Pennesetum squmulatum using transmission electron microscope.
为了解无孢子生殖胚囊助细胞的特点,用透射电子显微镜对无孢子生殖植物非洲狼尾草无融合生殖胚囊的助细胞进行了研究。
The results showed that the mode of reproduction conforms somatic apospory.
结果表明 ,龙须草生殖方式为无融合生殖的体细胞无孢子生殖。